Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite Deck Boards and Guardrail Systems (Guards or Handrails)

SCOPE
1.1 This specification covers the procedures to establish a performance rating for wood-plastic composite (WPC) deck boards. This specification also defines the procedures to establish a performance rating for WPC guards and handrails. The purpose of this specification is to establish the basis for code recognition of these products or systems in exterior applications where combustible construction is allowed (see X1.1).
1.2 Deck boards, guards, and handrails covered by this specification are permitted to be of any code compliant shape and thickness (solid or non-solid).
Note 1—While WPCs are produced in a broad range of ratios of fiber to resin it is recognized that the performance requirements in this specification are valid for any material or combination of materials used as deck boards, guards, or handrails. For products made primarily from resin, or for products that exhibit highly plastic properties (for example, more than 3 % strain without rupture in a standard flexural test under ambient conditions), users are directed to Specification D 6662 for additional guidance.
1.3 A deck board, and a deck board used as a stair tread, are assigned a span rating indicating its ability to comply with model code specified functions identified for its specific end use. A guard or handrail is recognized for its ability to meet minimum code requirements specified in the appropriate model building code.
1.4 Details of manufacturing processes may be proprietary and are beyond the scope of this specification.
1.5 UnitsThe values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units, which are provided for information only.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.

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ASTM D7032-04 - Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite Deck Boards and Guardrail Systems (Guards or Handrails)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D 7032 – 04
Standard Specification for
Establishing Performance Ratings for Wood-Plastic
Composite Deck Boards and Guardrail Systems (Guards or
1
Handrails)
This standard is issued under the fixed designation D7032; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 1.7 Table of Contents:
Section
1.1 This specification covers the procedures to establish a
Scope 1
performance rating for wood-plastic composite (WPC) deck
Referenced Documents 2
boards. This specification also defines the procedures to
Terminology 3
General Requirements 4
establish a performance rating for WPC guards and handrails.
Sampling 4.1
The purpose of this specification is to establish the basis for
Sample Size 4.2
code recognition of these products or systems in exterior
Conditioning 4.3
Flexural Tests 4.4
applications where combustible construction is allowed (see
Ultraviolet (UV) Resistance Test 4.5
X1.1).
Freeze-Thaw Resistance Test 4.6
1.2 Deck boards, guards, and handrails covered by this Biodeterioration Tests 4.7
Fire Performance Tests 4.8
specification are permitted to be of any code compliant shape
Deck Board Performance Requirements 5
and thickness (solid or non-solid).
General 5.1
Flexural Performance Tests 5.2
NOTE 1—While WPCs are produced in a broad range of ratios of fiber
Determination of the Unadjusted Allowable Load 5.3
to resin it is recognized that the performance requirements in this
Deck Board End-Use Adjustments 5.4
specification are valid for any material or combination of materials used
Creep-Recovery Test 5.5
as deck boards, guards, or handrails. For products made primarily from Mechanical Fastener Holding Tests 5.6
Slip Resistance Test 5.7
resin, or for products that exhibit highly plastic properties (for example,
Guardrail (Guards and Handrail) Performance Requirements 6
more than 3% strain without rupture in a standard flexural test under
General 6.1
ambient conditions), users are directed to Specification D6662 for
Guardrail System Test Requirements 6.2
additional guidance.
One- and Two-Family Dwelling Requirements 6.2.1.1
Handrail System Test Requirements 6.3
1.3 Adeckboard,andadeckboardusedasastairtread,are
Report 7
assigned a span rating indicating its ability to comply with
Independent Inspection 8
Manufacturing Standard 9
model code specified functions identified for its specific end
Precision and Bias 10
use. A guard or handrail is recognized for its ability to meet
Keywords 11
minimumcoderequirementsspecifiedintheappropriatemodel
Fire Propagation Test Methods Annex A1
Commentary Appendix X1
building code.
1.4 Details of manufacturing processes may be proprietary
2. Referenced Documents
and are beyond the scope of this specification.
2
2.1 ASTM Standards:
1.5 Units—The values stated in inch-pound units are to be
D9 Terminology Relating to Wood
regarded as standard. The values given in parentheses are
D790 TestMethodsforFlexuralPropertiesofUnreinforced
mathematical conversions to SI units, which are provided for
andReinforcedPlasticsandElectricalInsulationMaterials
information only.
D883 Terminology Relating to Plastics
1.6 This standard does not purport to address all of the
D1037 Test Methods for Evaluating Properties of Wood-
safety concerns, if any, associated with its use. It is the
base Fiber and Particle Panel Materials
responsibility of the user of this standard to establish appro-
D1413 Test Method for Wood Preservatives by Laboratory
priate safety and health practices and determine the applica-
Soil-Block Cultures
bility of regulatory requirements prior to use.
1
2
This specification is under the jurisdiction ofASTM Committee D07 on Wood
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
andisthedirectresponsibilityofSubcommitteeD07.02onLumberandEngineered
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Wood Products.
Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Oct. 1, 2004. Published October 2004.
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D7032–04
D1554 Terminology Relating to Wood-Base Fiber and 3. Terminology
Particle Panel Materials
3.1 Definitions—Terminology used to describe WPCs are
D1761 Test Methods for Mechanical Fasteners in Wood
defined in Terminologies D9, D883, D1554, and D4092,
D1929 TestMethodforDeterminingIgnitionTemperatures
Practice D1972, and Classification D4000.
of Plastics
3.2 Definitions of Terms Specific to
...

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